Brief introduction of sensor:
1. sensor (English name: transducer/sensor) is a detection device that can sense the measured information, and can convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control.
2. The existence and development of sensors make objects have senses such as touch, taste and smell, and make objects come alive. Sensors are an extension of human five senses.
3. The sensor has the characteristics of miniaturization, digitalization, intelligence, multi-function, systematization and networking, and is the primary link to realize automatic detection and control. A new type of aluminum nitride sensor can work at high temperature up to 900℃.
Main functions of the sensor:
1. In order to get information from the outside world, people must use sensory organs. However, it is not enough to study natural phenomena and laws and their functions in production activities only by people's own sensory organs. In order to adapt to this situation, sensors are needed. Therefore, it can be said that the sensor is an extension of the human five senses, also known as the electric five senses.
2. With the advent of the new technological revolution, the world began to enter the information age. In the process of using information, the first thing to be solved is to obtain accurate and reliable information, and sensors are the main ways and means to obtain information in nature and production fields.
3. In the modern industrial production process, especially in the automatic production process, various sensors should be used to monitor and control various parameters in the production process, so that the equipment can work in normal or optimal state and the products can achieve the best quality. Therefore, it can be said that without many excellent sensors, modern production will lose its foundation.
4. In the research of basic disciplines, the position of sensors is more prominent. The development of modern science and technology has entered many new fields: for example, we should observe the vast universe of thousands of light-years in macro, the particle world as small as fm in micro, the evolution of celestial bodies as long as hundreds of thousands of years in vertical direction, and the instantaneous response as short as S.
5. In addition, there have been various extreme technical researches that play an important role in deepening the understanding of materials and developing new energy and new materials, such as ultra-high temperature, ultra-low temperature, ultra-high pressure, ultra-high vacuum, ultra-strong magnetic field and ultra-weak magnetic field. Obviously, if there is no suitable sensor, it is impossible to obtain a lot of information that human senses can't directly obtain.
6. The obstacle of many basic scientific research lies in the difficulty of obtaining object information, and the emergence of some new mechanisms and high-sensitivity detection sensors often leads to breakthroughs in this field. The development of some sensors is often the forerunner of the development of some marginal disciplines.
7. Sensors have already penetrated into a wide range of fields such as industrial production, space exploration, ocean exploration, environmental protection, resource investigation, medical diagnosis, bioengineering, and even cultural relics protection. It is no exaggeration to say that almost every modernization project is inseparable from various sensors, from the vast space to the vast ocean to various complex engineering systems.
8. It can be seen that sensor technology plays an important role in developing economy and promoting social progress. All countries in the world attach great importance to the development of this field. It is believed that in the near future, sensor technology will make a leap and reach a new level commensurate with its important position.